Just weighed my 26" wtb wolverine 2.2 from R.E.I. $24.99 (less10%dividend$) and free shipping.
580gm.
Mounted tubeless on crest rim. Very easy.. Could of used floor pump for this one. Also no blisters or leaks at all.

Thought I pulled a brainfart after reading your post. Into the garage for a doublecheck. Yep, a 2.1 in big white letters on the sidewall. Folding bead, 26" tire. Sealed up easily tubeless with two layers of Gorilla tape. Zero sidewall leaks, but it did lose 10psi the first night. Second day zero psi loss using homebrew sealant.